M&S says

A stylish checked blazer is a sartorial addition to any contemporary women’s wardrobe, and this versatile piece can be paired with everything from jeans and sneakers to the matching skirt. Crafted from a premium cotton rich Italian fabric with a touch of wool, this blazer will be your new go-to when creating chic outfits.

* 20% off promotion applies at checkout: 20% off full price clothing, shoes and homeware. Offer commences 18/03/2019 at 11:00 am AEDT and ends 26/03/2019 at 10:59 am AEDT at www.marksandspencer.com/au only. Promotion applies at checkout. Please check relevant delivery terms and conditions online. Cannot be used in conjunction with any other promotion, offer or discount code. Sale items are excluded. Offer does not apply to delivery charges. Any refunds will take into account the discount. M&S reserves the right to reject this offer with reasonable cause.